It would take approximately 311 tiles plus 5% to 10% waste depending on how you lay your floor out and how many cuts you will have.
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∙ 12y ago67 tiles.
10
100 tiles or 96 which is the correct amount
288
You'll need 200 18-inch tiles.
67 tiles.
192 tiles
220
22.2 tiles so buy 23 tiles.
118
12...
18" x 18" = 1.5' x 1.5' = 2.25 square feet90/2.25 = 40 tiles.
102.22 tiles because each tile is 2.25 sq.ft. 230 / 2.25 =102.22 so really 103 tiles.
if you are quoting inches, then a 18x18 tile measures 2.25 square feet. On that basis you would need 106.66 or 107 to the nearest.
Depends on how many are in each box?
144/(1.5*1.5) = 64 tiles, but if you are using this to determine how many are needed to tile a room, you need to add at least 10% for edging around the room. So, you probably need at least 71 or more tiles.
18 inches = 1.5 ft, so each tile is 2.25 sq ft, number required = 249/2.25 = 111